I have a SAN LUN of 550 GB created as an ext3 partition of the entire lun and need to make the lun and partition larger... 600 GB
I have read that once you extend the LUN on the array side you can umount the LUN, run fsck and use the resize2fs on the host side.
Can anyone verifyif this is correct and if there are any potential dangers
in doing this.
hi,
i have a volume on a LUN of an EMC-storage and i need to increase the
size.
i could increase the size of the LUN on the EMC, i could increase the
size of the disk for solaris, but how can i tell the veritas volume
manager that the disk is larger now?
what i've done:
1. LUN on EMC
2.... (3 Replies)
Hello,
I am having trouble with getting Lun visible to the solaris 8 host from the Array SUN T3B.
It's SunFire 280R with Qlogic QLA2340 directly connected via 1 FC path to T3. On the array there is one 500GB volume created and mounted. I have tried with both F/w version of the array 2.1.6 and... (4 Replies)
Hi,
I am working on SunOS perlrate 5.10 Generic_127111-09 sun4v sparc SUNW,SPARC-Enterprise-T5120.
The server has an LSISAS3801E HBA card installed and is connected to a StorageTek 2530 array.
I have made a volume on arrary using Common Array Manager.
I can see the volume on server:
... (2 Replies)
Am trying to differentiate between the local disks and LUN's presented from SAN onto the server. Have Tried fdisk -l, however I quite cudn't differentiate the local disks from SAN presented LUN's.
Can you pls. let me know the procedure and commands to find this.
OS - RHEL 4
SAN - EMC... (3 Replies)
Hi,
I would like to know if there is a command similar to scsimgr in HP-UX that
can help me change the algorithm and reserve_policy attributes of all luns presented to an AIX host.
Otherwise I would have to use,
chdev -l hdiskX -a algorithm=round_robin reserve_policy=no_reserve
in a... (1 Reply)
Hi,
I have an iSCSI LUN attached to an AIX 5.3 box. It's initial size is 250GB, I just grew it on the SAN to 300GB, but AIX is not seeing the change. Right now I have some processes going and it's eating up the disk space. I need to grow this lun by atleast 30GB otherwise the process with bomb... (5 Replies)
I have seen a few threads / posts on the forum's but nothing specific to what Iam after. So Iam hoping you can help.
Issue : Iam hoping to remove unused emc luns from my solaris servers , T2000 (5.10 Generic_142900-02). I have a list of the process I have followed for the removal of the luns.... (3 Replies)
Hi All,
I am new for this blog and this is my first Query on this blog. I would like to dael with graet masters on linux.
Here we go,
After storage people created the LUN, How to add that LUN to Linux server. (Make that LUN visibility on linux server.) ?
How to view the LUN... (5 Replies)
Discussion started by: abhay1983
5 Replies
LEARN ABOUT BSD
cmdk
cmdk(7D) Devices cmdk(7D)NAME
cmdk - common disk driver
SYNOPSIS
cmdk@target, lun : [ partition | slice ]
DESCRIPTION
The cmdk device driver is a common interface to various disk devices. The driver supports magnetic fixed disks and magnetic removable
disks.
The block-files access the disk using the system's normal buffering mechanism and are read and written without regard to physical disk
records. There is also a "raw" interface that provides for direct transmission between the disk and the user's read or write buffer. A sin-
gle read or write call usually results in one I/O operation; raw I/O is therefore considerably more efficient when many bytes are transmit-
ted. The names of the block files are found in /dev/dsk; the names of the raw files are found in /dev/rdsk.
I/O requests to the magnetic disk must have an offset and transfer length that is a multiple of 512 bytes or the driver returns an EINVAL
error.
Slice 0 is normally used for the root file system on a disk, slice 1 as a paging area (for example, swap), and slice 2 for backing up the
entire fdisk partition for Solaris software. Other slices may be used for usr file systems or system reserved area.
Fdisk partition 0 is to access the entire disk and is generally used by the fdisk(1M) program.
FILES
/dev/dsk/cndn[s|p]n block device (IDE)
/dev/rdsk/cndn[s|p]n raw device (IDE)
where:
cn controller n
dn lun n (0-7)
sn UNIX system slice n (0-15)
pn fdisk partition(0)
/kernel/drv/cmdk 32-bit kernel module.
/kernel/drv/amd64/cmdk 64-bit kernel module.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |x86 |
+-----------------------------+-----------------------------+
SEE ALSO fdisk(1M), mount(1M), lseek(2), read(2), write(2), readdir(3C), scsi(4), vfstab(4), attributes(5), dkio(7I)SunOS 5.10 9 Oct 2004 cmdk(7D)